[go: up one dir, main page]

CN106475103B - A kind of preparation method of methane portion oxidation synthesis gas catalyst - Google Patents

A kind of preparation method of methane portion oxidation synthesis gas catalyst Download PDF

Info

Publication number
CN106475103B
CN106475103B CN201610003101.3A CN201610003101A CN106475103B CN 106475103 B CN106475103 B CN 106475103B CN 201610003101 A CN201610003101 A CN 201610003101A CN 106475103 B CN106475103 B CN 106475103B
Authority
CN
China
Prior art keywords
catalyst
solution
active component
nickel
auxiliary agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610003101.3A
Other languages
Chinese (zh)
Other versions
CN106475103A (en
Inventor
任金晨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Fushun Research Institute of Petroleum and Petrochemicals
Original Assignee
China Petroleum and Chemical Corp
Sinopec Fushun Research Institute of Petroleum and Petrochemicals
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Fushun Research Institute of Petroleum and Petrochemicals filed Critical China Petroleum and Chemical Corp
Priority to CN201610003101.3A priority Critical patent/CN106475103B/en
Publication of CN106475103A publication Critical patent/CN106475103A/en
Application granted granted Critical
Publication of CN106475103B publication Critical patent/CN106475103B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16Reducing
    • B01J37/18Reducing with gases containing free hydrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/74Iron group metals
    • B01J23/755Nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/78Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali- or alkaline earth metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/83Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

The present invention relates to a kind of preparation method of methane portion oxidation synthesis gas catalyst, the catalyst includes active component, auxiliary agent and carrier, and the preparation method of the catalyst includes the following steps:Catalyst precarsor B is prepared first, then reduction treatment is carried out to catalyst precarsor B, it is uniformly mixed with furfural aqueous solution by auxiliary agent presoma is soluble in water, then it is added in autoclave with together with catalyst precarsor B, it is reacted after solution D is added, filtering obtained solid sample obtains catalyst again after drying, calcination process after obtained solidliquid mixture processing separation.Catalyst reaction activity prepared by this method is high, not only reduces metal consumption, but also the hot spot during methane portion oxidation is inhibited to generate.

Description

A kind of preparation method of methane portion oxidation synthesis gas catalyst
Technical field
The present invention relates to a kind of preparation methods of methane portion oxidation synthesis gas catalyst, more particularly, to a kind of methane The preparation method of portion oxidation synthesis gas loaded catalyst.
Background technology
90% or more of gas component is methane, is natural gas profit by methane through synthesis gas synthetic fuel and chemicals again One of effective way.With traditional vapour reforming ratio, methane portion oxidation synthesis gas has required reaction vessel body The synthesis gas that the small, reaction rate of product is fast, low energy consumption and generates is suitable as the advantages that unstripped gas of methanol and Fiscber-Tropscb synthesis.Separately Outside, exploitation methane portion oxidation technology is possible to replace highly endothermic methane steam reformation technique for producing synthesis gas, special It is not to be of great significance for remote or offshore natural gas resource utilization.
The main catalyst system of methane portion oxidation synthesis gas is by active component noble metal(Pt, Pd, Rh, Ru, Ir), nickel or cobalt be supported on the carriers such as aluminium oxide, silica, magnesia, zirconium oxide, titanium oxide, while can be used alkali metal, Alkaline-earth metal or rare-earth oxide are modified to improve the reactivity worth of catalyst.
CN 101049566A disclose a kind of for the Ni bases catalyst of methane portion oxidation synthesis gas and its preparation side Method.The carrier of catalyst is complex carrier Mg-Al-Ce-Zr-O, active component NiO.The patent is made using coprecipitation method Obtained carrier is dipped in Ni (NO by complex carrier3)2In solution, methane conversion reaches 84% or more, CO on obtained catalyst Selectivity reaches 99% or more.
CN 101219393A disclose a kind of cobalt-based loaded catalyst for methane portion oxidation synthesis gas and its Preparation method.Catalyst takes step impregnation method to prepare, and is to help with a kind of alkaline-earth metal or rare earth metal using Co as active component Agent, using HZSM-5 as carrier, catalyst activity obtained is high, coking resistivity is strong, stability is good.
CN 101284241A disclose a kind of catalyst of methane portion oxidation synthesis gas and preparation method thereof.With mistake It is active component that metal Co, which is crossed, with noble metal, using a kind of element selected from alkaline-earth metal as auxiliary agent, with γ-Al2O3For carrier, adopt The catalyst of methane portion oxidation synthesis gas is made with infusion process.Catalyst has high activity, excellent coking resistivity, Gao Wen Qualitative advantage.
Although catalyst made from above-mentioned patented method obtains preferable methane portion oxidation synthesis gas reactivity Can, but since the reaction is a fast reaction(This fast reaction, which is typically at, to be carried out under conditions of mass transport limitation), Reactant reacts while reaching catalyst external surface to be completed, thus the inner surface of catalyst contributes not goal response Greatly, this has resulted in lower rate of metal in carrier duct, while can also accelerate the deep oxidation of product.
Invention content
To overcome shortcoming in the prior art, the present invention provides a kind of methane portion oxidation synthesis gas catalyst Preparation method, catalyst prepared by this method has the characteristics that of low cost, metal component utilization rate is high and selectively good.
The present invention provides a kind of preparation method of methane portion oxidation synthesis gas catalyst, the catalyst includes living Property component, auxiliary agent and carrier, active component Ni, one or more of auxiliary agent Ca, Mg, Zr, Ce or La, carrier be oxidation Any one of aluminium, silica;On the basis of each element quality accounts for the percentage of catalyst quality in catalyst, active component Content is 10wt%~25wt%, preferably 10wt%~20wt%, and the content of auxiliary agent is 1wt%~5wt%, preferably 3wt%~5wt%, remaining Amount is carrier;The preparation method of the catalyst includes the following steps:
(1)Active component presoma is soluble in water, obtain solution A;
(2)Carrier is added to step(1)In obtained solution A, after dipping, aging, drying, calcination process, obtain Catalyst precarsor B;
(3)Using reducing atmosphere to step(2)Obtained catalyst precarsor B carries out reduction treatment;
(4)Auxiliary agent presoma is soluble in water, obtain solution C, and be uniformly mixed with furfural aqueous solution, then with step (3)Obtained catalyst precarsor B is added in autoclave together;
(5)High molecular weight water soluble polymer, active component presoma is soluble in water, obtain solution D;Solution D is added To step(4)It in the autoclave, is replaced 2~5 times with hydrogen after sealing, then adjusts Hydrogen Vapor Pressure to 2~4MPa, 1~3h is reacted at 100~200 DEG C;
(6)Wait for step(5)Obtained solidliquid mixture is down to 20~30 DEG C, and absolute ethyl alcohol or aqueous citric acid solution is added, 1~2h is placed, is then filtered, obtained solid sample after drying, calcination process, obtains catalyst again.
In the preparation method of methane portion oxidation synthesis gas catalyst of the present invention, step(1)Described in before active component Drive body is nickel nitrate, nickel acetate, nickel sulfate, one or more in nickel chloride, preferably nickel nitrate;In the solution A, activity Based on the element, mass fraction in the solution is 1%~7% to component.
In the preparation method of methane portion oxidation synthesis gas catalyst of the present invention, step(2)Described in dipping be etc. Volume impregnation, dip time are 1~3h;The aging can aging at room temperature, can also aging at a constant temperature, always Change temperature be 10~90 DEG C, preferably 20~60 DEG C, ageing time be 1~for 24 hours, preferably 4~12h;Step(2)With step (6)Described in drying temperature be 70~150 DEG C, preferably 80~120 DEG C, drying time be 2~12h, preferably 4~8h;Step Suddenly(2)With step(6)Described in calcination temperature be 500~900 DEG C, preferably 600~800 DEG C, roasting time be 2~12h, it is excellent It is selected as 4~8h.
In the preparation method of methane portion oxidation synthesis gas catalyst of the present invention, step(2)Described in carrier be oxygen Change any one of aluminium, silica, commercially available product may be used in the carrier, can also be by method system well known in the art It is standby;In the catalyst precarsor B, the nickel of load is 1wt%~5wt% of final catalyst in terms of element wt.
In the preparation method of methane portion oxidation synthesis gas catalyst of the present invention, step(3)Described in reducing atmosphere For the mixed gas of hydrogen or hydrogen and nitrogen, hydrogen volume content is 10%~95% in the mixed gas.It is specific to go back Former processing procedure is as follows:Catalyst precarsor B is warming up to 300~600 DEG C under nitrogen atmosphere, then passes to hydrogen or hydrogen and nitrogen The mixed gas of gas, in 0.1~0.5MPa(Absolute pressure)After handling 4~8h, it is down to room temperature in a nitrogen atmosphere.
In the preparation method of methane portion oxidation synthesis gas catalyst of the present invention, step(4)Described in auxiliary agent forerunner Body is calcium nitrate, calcium chloride, magnesium nitrate, magnesium chloride, zirconium nitrate, basic zirconium chloride, cerous nitrate, one or more in lanthanum nitrate, Preferably magnesium nitrate;In the solution C, based on the element, mass fraction in the solution is 1%~4% to auxiliary agent;The furfural is water-soluble The mass fraction of furfural is 30%~50% in liquid;Step(4)Described in furfural aqueous solution and the mass ratio of solution C be 3~5, institute State solution C and the gross mass and step of furfuryl aldehyde solution(3)The mass ratio of obtained reduction rear catalyst precursor B is 3~6.
In the preparation method of methane portion oxidation synthesis gas catalyst of the present invention, step(5)Described in water-soluble high score Sub- polymer is polyethylene glycol(PEG), polyvinylpyrrolidone(PVP), polyvinyl alcohol(PVA)One or more of;It is described Active component presoma is nickel nitrate, nickel acetate, nickel sulfate, one or more in nickel chloride, preferably nickel nitrate;It is described molten In liquid D, in active component presoma the nickeliferous mass fraction in solution D based on the element be 0.4%~2%, water-soluble high score Mass fraction of the sub- polymer in solution D is 3~6 times of Ni element mass fractions.
In the preparation method of methane portion oxidation synthesis gas catalyst of the present invention, step(6)Described in anhydrous second is added The mass ratio of the quality and high molecular weight water soluble polymer of alcohol or citric acid is 2~4;The mass fraction of the aqueous citric acid solution It is 10%~20%.
Catalyst prepared by the method for the present invention can be applied to methane portion oxidation synthesis gas reaction.Catalyst is using It is preceding in a hydrogen atmosphere, 700~800 DEG C of 1~3h of prereduction.Catalyst prepared by the method for the present invention is applied to methane portion oxidation Preparing synthetic gas reacts, and preferable process conditions are:The composition CH of unstripped gas4/O2Molar ratio is 1.75~2.2, can be in unstripped gas Contain Ar, N2Or the dilution property gas such as He, 20000~200000h of unstripped gas air speed-1, reaction pressure is 0.1~1Mpa, reaction Temperature is 600~900 DEG C.
Compared with prior art, the preparation method being related to through the invention can obtain a kind of distribution of active metal outer layer Methane portion oxidation synthesis gas nickel-base catalyst.In the present invention, pre-soaked a part of active metal is to carry out furfural water Phase hydrogenation reaction.Active metal predecessor and high molecular weight water soluble polymer, a side is added simultaneously in the system of furfural hydrogenation Face hinders active metal to the diffusion inside catalyst granules using furfural hydrogenation product;On the other hand, before using active metal The coordination between object and high molecular weight water soluble polymer is driven, active metallic ion is inside and outside catalyst granules in reduction solution Concentration difference, slow down active metal to the diffusion velocity inside catalyst granules.Catalyst reaction activity prepared by this method is high, Not only metal consumption is reduced, but also the hot spot during methane portion oxidation is inhibited to generate.Catalyst precarsor is handled and is urged simultaneously Agent prepares a step and completes, and preparation process is simple, is conducive to industrial amplification.
Specific implementation mode
The technology contents and effect further illustrated the present invention with reference to embodiment, but it is not so limited the present invention.
Evaluation condition:With hydrogen reducing 2 hours at 700 DEG C before catalyst reaction of the present invention.In continuous sample introduction fixed bed It is reacted in quartz reactor, 750 DEG C of reaction temperature, unstripped gas forms CH4/O2/Ar = 2/1/4(Molar ratio), air speed 1 × 105h-1, gas-chromatography on-line analysis is used after the condensed water removal of product.Sampling analysis after reaction 1 hour, evaluation results are shown in Table 1.
The metal element content in catalyst is determined using XRF analysis technology.Using scanning electron microscope analysis institute of the present invention The distribution situation of active component on a catalyst in the catalyst of preparation.Catalyst activity obtained by the embodiment of the present invention and comparative example The scanning electron microscope analysis of component nickel the results are shown in Table 2.
Embodiment 1
It weighs 2.97g nickel nitrates to be dissolved in 13mL deionized waters, obtains solution A;It is carried on using equi-volume impregnating 14.9g alumina supports(Kong Rongwei 0.73mL/g, specific surface area 253m2/ g, bar shaped, equivalent diameter 1.5mm), soak at room temperature Stain 2h, aging 4h, 80 DEG C of dry 12h, 700 DEG C of roasting 4h, obtained catalyst precarsor B, the Ni of load are in terms of element wt, for most The 3% of whole catalyst;Catalyst precarsor B is activated in the mixed atmosphere of hydrogen, and hydrogen volume content is 80% in mixed gas, Reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;8.55g magnesium nitrates are dissolved in 16mL deionized waters, are obtained Solution C, and with the mass fraction of its 4 times of quality be 40% furfural aqueous solution be uniformly mixed, then with the catalysis after reduction activation Agent precursor B is added in autoclave together;10.8g polyethylene glycol, 11.89g nickel nitrates are dissolved in 200mL deionized waters In, obtain solution D;Solution D is also added in autoclave, is replaced 3 times with hydrogen after sealing, then adjusts Hydrogen Vapor Pressure To 3MPa, 2h is reacted at 150 DEG C;Solidliquid mixture after being reacted in above-mentioned autoclave is down to 25 DEG C, and the anhydrous second of 33g is added Alcohol is placed 1.5h, is then filtered, and obtained solid sample is put into baking oven at 110 DEG C dry 6h, roasts 6h at 700 DEG C, that is, makes It is 12.6%Ni to obtain quality based on the element and account for catalyst percentage composition, and the catalyst of 3.7%Mg is denoted as C-1.
Embodiment 2
It weighs 2.97g nickel nitrates to be dissolved in 12mL deionized waters, obtains solution A;It is carried on using equi-volume impregnating 14.9g silica supports(Kong Rongwei 0.97mL/g, specific surface area 372m2/ g, spherical, equivalent diameter 0.5mm), soak at room temperature Stain 2h, aging 4h, 80 DEG C of dry 12h, 700 DEG C of roasting 4h, obtained catalyst precarsor B, the Ni of load are in terms of element wt, for most The 3% of whole catalyst;Catalyst precarsor B is activated in the mixed atmosphere of hydrogen, and hydrogen volume content is 80% in mixed gas, Reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;8.55g magnesium nitrates are dissolved in 16mL deionized waters, are obtained Solution C, and with the mass fraction of its 4 times of quality be 40% furfural aqueous solution be uniformly mixed, then with the catalysis after reduction activation Agent precursor B is added in autoclave together;10.8g polyethylene glycol, 11.89g nickel nitrates are dissolved in 200mL deionized waters In, obtain solution D;Solution D is also added in autoclave, is replaced 3 times with hydrogen after sealing, then adjusts Hydrogen Vapor Pressure To 3MPa, 2h is reacted at 150 DEG C;Solidliquid mixture after being reacted in above-mentioned autoclave is down to 25 DEG C, and the anhydrous second of 33g is added Alcohol is placed 1.5h, is then filtered, and obtained solid sample is put into baking oven at 110 DEG C dry 6h, roasts 6h at 700 DEG C, that is, makes It is 11.8%Ni to obtain quality based on the element and account for catalyst percentage composition, and the catalyst of 3.1%Mg is denoted as C-2.
Embodiment 3
It weighs 0.99g nickel nitrates to be dissolved in 15mL deionized waters, obtains solution A;It is carried on using equi-volume impregnating 16.5g alumina supports(Kong Rongwei 0.73mL/g, specific surface area 253m2/ g, bar shaped, equivalent diameter 1.5mm), soak at room temperature Stain 2h, aging 4h, 80 DEG C of dry 12h, 700 DEG C of roasting 4h, obtained catalyst precarsor B, the Ni of load are in terms of element wt, for most The 1% of whole catalyst;Catalyst precarsor B is activated in the mixed atmosphere of hydrogen, and hydrogen volume content is 80% in mixed gas, Reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;6.41g magnesium nitrates are dissolved in 16mL deionized waters, are obtained Solution C, and with the mass fraction of its 4 times of quality be 40% furfural aqueous solution be uniformly mixed, then with the catalysis after reduction activation Agent precursor B is added in autoclave together;8.1g polyethylene glycol, 8.92g nickel nitrates are dissolved in 200mL deionized waters, Obtain solution D;Solution D is also added in autoclave, after sealing with hydrogen replace 3 times, then adjust Hydrogen Vapor Pressure to 3MPa reacts 2h at 150 DEG C;Solidliquid mixture after being reacted in above-mentioned autoclave is down to 25 DEG C, and the anhydrous second of 25g is added Alcohol is placed 1.5h, is then filtered, and obtained solid sample is put into baking oven at 110 DEG C dry 6h, roasts 6h at 700 DEG C, that is, makes It is 8.7%Ni to obtain quality based on the element and account for catalyst percentage composition, and the catalyst of 2.2%Mg is denoted as C-3.
Embodiment 4
It weighs 4.96g nickel nitrates to be dissolved in 11mL deionized waters, obtains solution A;It is carried on using equi-volume impregnating 13.3g alumina supports(Kong Rongwei 0.73mL/g, specific surface area 253m2/ g, bar shaped, equivalent diameter 1.5mm), soak at room temperature Stain 2h, aging 4h, 80 DEG C of dry 12h, 700 DEG C of roasting 4h, obtained catalyst precarsor B, the Ni of load are in terms of element wt, for most The 5% of whole catalyst;Catalyst precarsor B is activated in the mixed atmosphere of hydrogen, and hydrogen volume content is 80% in mixed gas, Reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;10.68g magnesium nitrates are dissolved in 16mL deionized waters, are obtained Solution C, and with the mass fraction of its 4 times of quality be 40% furfural aqueous solution be uniformly mixed, then with the catalysis after reduction activation Agent precursor B is added in autoclave together;13.5g polyethylene glycol, 14.87g nickel nitrates are dissolved in 200mL deionized waters In, obtain solution D;Solution D is also added in autoclave, is replaced 3 times with hydrogen after sealing, then adjusts Hydrogen Vapor Pressure To 3MPa, 2h is reacted at 150 DEG C;Solidliquid mixture after being reacted in above-mentioned autoclave is down to 25 DEG C, and the anhydrous second of 41g is added Alcohol is placed 1.5h, is then filtered, and obtained solid sample is put into baking oven at 110 DEG C dry 6h, roasts 6h at 700 DEG C, that is, makes It is 17.3%Ni to obtain quality based on the element and account for catalyst percentage composition, and the catalyst of 4.1%Mg is denoted as C-4.
Embodiment 5
It weighs 2.97g nickel nitrates to be dissolved in 13mL deionized waters, obtains solution A;It is carried on using equi-volume impregnating 14.9g alumina supports(Kong Rongwei 0.73mL/g, specific surface area 253m2/ g, bar shaped, equivalent diameter 1.5mm), soak at room temperature Stain 2h, aging 4h, 80 DEG C of dry 12h, 700 DEG C of roasting 4h, obtained catalyst precarsor B, the Ni of load are in terms of element wt, for most The 3% of whole catalyst;Catalyst precarsor B is activated in the mixed atmosphere of hydrogen, and hydrogen volume content is 80% in mixed gas, Reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;3.77g zirconium nitrates are dissolved in 16mL deionized waters, are obtained Solution C, and with the mass fraction of its 4 times of quality be 40% furfural aqueous solution be uniformly mixed, then with the catalysis after reduction activation Agent precursor B is added in autoclave together;10.8g polyethylene glycol, 11.89g nickel nitrates are dissolved in 200mL deionized waters In, obtain solution D;Solution D is also added in autoclave, is replaced 3 times with hydrogen after sealing, then adjusts Hydrogen Vapor Pressure To 3MPa, 2h is reacted at 150 DEG C;Solidliquid mixture after being reacted in above-mentioned autoclave is down to 25 DEG C, and the anhydrous second of 33g is added Alcohol is placed 1.5h, is then filtered, and obtained solid sample is put into baking oven at 110 DEG C dry 6h, roasts 6h at 700 DEG C, that is, makes It is 12.1%Ni to obtain quality based on the element and account for catalyst percentage composition, and the catalyst of 3.2%Zr is denoted as C-5.
Embodiment 6
It weighs 2.97g nickel nitrates to be dissolved in 13mL deionized waters, obtains solution A;It is carried on using equi-volume impregnating 14.9g alumina supports(Kong Rongwei 0.73mL/g, specific surface area 253m2/ g, bar shaped, equivalent diameter 1.5mm), soak at room temperature Stain 2h, aging 4h, 80 DEG C of dry 12h, 700 DEG C of roasting 4h, obtained catalyst precarsor B, the Ni of load are in terms of element wt, for most The 3% of whole catalyst;Catalyst precarsor B is activated in the mixed atmosphere of hydrogen, and hydrogen volume content is 80% in mixed gas, Reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;4.72g calcium nitrate is dissolved in 16mL deionized waters, is obtained Solution C, and with the mass fraction of its 3 times of quality be 30% furfural aqueous solution be uniformly mixed, then with the catalysis after reduction activation Agent precursor B is added in autoclave together;By 10.8g polyvinylpyrrolidones(k30), 11.89g nickel nitrates are dissolved in In 200mL deionized waters, solution D is obtained;Solution D is also added in autoclave, after sealing with hydrogen replace 3 times, so Hydrogen Vapor Pressure is adjusted afterwards to 3MPa, reacts 2h at 150 DEG C;Solidliquid mixture after being reacted in above-mentioned autoclave is down to 25 DEG C, the aqueous citric acid solution that 220g mass fractions are 15% is added, places 1.5h, then filters, obtained solid sample is put into baking oven In at 110 DEG C dry 6h, roast 6h at 700 DEG C, it is 13.1%Ni to obtain quality based on the element and account for catalyst percentage composition, The catalyst of 3.5%Ca, is denoted as C-6.
Embodiment 7
It weighs 2.97g nickel nitrates to be dissolved in 13mL deionized waters, obtains solution A;It is carried on using equi-volume impregnating 14.9g alumina supports(Kong Rongwei 0.73mL/g, specific surface area 253m2/ g, bar shaped, equivalent diameter 1.5mm), soak at room temperature Stain 2h, aging 4h, 80 DEG C of dry 12h, 700 DEG C of roasting 4h, obtained catalyst precarsor B, the Ni of load are in terms of element wt, for most The 3% of whole catalyst;Catalyst precarsor B is activated in the mixed atmosphere of hydrogen, and hydrogen volume content is 80% in mixed gas, Reducing condition is 450 DEG C, 0.2MPa(Absolute pressure), recovery time 4h;2.48g lanthanum nitrates are dissolved in 16mL deionized waters, are obtained Solution C, and with the mass fraction of its 5 times of quality be 50% furfural aqueous solution be uniformly mixed, then with the catalysis after reduction activation Agent precursor B is added in autoclave together;10.8g polyvinyl alcohol, 11.89g nickel nitrates are dissolved in 200mL deionized waters In, obtain solution D;Solution D is also added in autoclave, is replaced 3 times with hydrogen after sealing, then adjusts Hydrogen Vapor Pressure To 3MPa, 2h is reacted at 150 DEG C;Solidliquid mixture after being reacted in above-mentioned autoclave is down to 25 DEG C, and the anhydrous second of 33g is added Alcohol is placed 1.5h, is then filtered, and obtained solid sample is put into baking oven at 110 DEG C dry 6h, roasts 6h at 700 DEG C, that is, makes It is 12.6%Ni to obtain quality based on the element and account for catalyst percentage composition, and the catalyst of 3.7%La is denoted as C-7.
Comparative example
It weighs 14.86g nickel nitrates and 8.55g magnesium nitrates is dissolved in deionized water, aqueous solution is made;Using incipient impregnation Method is carried on 16.2g alumina supports(Kong Rongwei 0.73mL/g, specific surface area 253m2/ g, bar shaped, equivalent diameter 1.5mm), Impregnate 2h at room temperature, aging 6h, 110 DEG C of dry 6h, 700 DEG C of roasting 6h obtain quality based on the element and account for catalyst percentage and contain Amount is 14.7%Ni, and the catalyst of 3.6%Mg is denoted as D-1.
The reactivity worth of 1 catalyst of table
2 catalyst activity component Ni content distributions of table(wt%)

Claims (24)

1. a kind of preparation method of methane portion oxidation synthesis gas catalyst, the catalyst include active component, auxiliary agent and Carrier, active component Ni, one or more of auxiliary agent Ca, Mg, Zr, Ce or La, carrier are in aluminium oxide, silica It is any;On the basis of each element quality accounts for the percentage of catalyst quality in catalyst, the content of active component be 10wt%~ The content of 25wt%, auxiliary agent are 1wt%~5wt%, and surplus is carrier;The preparation method of the catalyst includes the following steps:
(1)Active component presoma is soluble in water, obtain solution A;
(2)Carrier is added to step(1)In obtained solution A, after dipping, aging, drying, calcination process, it is catalyzed Agent precursor B;
(3)Using reducing atmosphere to step(2)Obtained catalyst precarsor B carries out reduction treatment;
(4)Auxiliary agent presoma is soluble in water, obtain solution C, and be uniformly mixed with furfural aqueous solution, then with step(3) To catalyst precarsor B be added in autoclave together;
(5)High molecular weight water soluble polymer, active component presoma is soluble in water, obtain solution D;Solution D is added to step Suddenly(4)It in the autoclave, is replaced 2~5 times with hydrogen after sealing, then adjusts Hydrogen Vapor Pressure to 2~4MPa, 1~3h is reacted at 100~200 DEG C, the high molecular weight water soluble polymer is polyethylene glycol, polyvinylpyrrolidone, polyethylene One or more of alcohol;
(6)Wait for step(5)Obtained solidliquid mixture is down to 20~30 DEG C, and absolute ethyl alcohol or aqueous citric acid solution is then added, 1~2h is placed, is then filtered, obtained solid sample after drying, calcination process, obtains catalyst again.
2. according to the method for claim 1, it is characterised in that:The hundred of catalyst quality is accounted for each element quality in catalyst Divide on the basis of ratio, the content of active component is 10wt%~20wt%, and the content of auxiliary agent is 3wt%~5wt%.
3. according to the method for claim 1, it is characterised in that:Step(1)Described in active component presoma be nickel nitrate, It is one or more in nickel acetate, nickel sulfate, nickel chloride.
4. according to the method described in claim 1 or 3, it is characterised in that:Step(1)Described in active component presoma be nitric acid Nickel.
5. according to the method for claim 1, it is characterised in that:Step(1)Described in solution A, active component is with element Meter, the mass fraction in solution A are 1%~7%.
6. according to the method for claim 1, it is characterised in that:Step(2)Described in catalyst precarsor B, the nickel of load It is 1wt%~5wt% of final catalyst in terms of element wt.
7. according to the method for claim 1, it is characterised in that:Step(2)Described in dipping be incipient impregnation, dipping Time is 1~3h.
8. according to the method for claim 1, it is characterised in that:Step(2)Described in aging temperature be 10~90 DEG C, always Change the time be 1~for 24 hours.
9. according to the method described in claim 1 or 8, it is characterised in that:Step(2)Described in aging temperature be 20~60 DEG C, ageing time is 4~12h.
10. according to the method for claim 1, it is characterised in that:Step(2)With step(6)Described in drying temperature be 70 ~150 DEG C, drying time is 2~12h.
11. according to the method described in claim 1 or 10, it is characterised in that:Step(2)With step(6)Described in drying temperature It it is 80~120 DEG C, drying time is 4~8h.
12. according to the method for claim 1, it is characterised in that:Step(2)With step(6)Described in calcination temperature be 500 ~900 DEG C, roasting time is 2~12h.
13. according to the method described in claim 1 or 12, it is characterised in that:Step(2)With step(6)Described in calcination temperature It it is 600~800 DEG C, roasting time is 4~8h.
14. according to the method for claim 1, it is characterised in that:Step(3)Described in reducing atmosphere be hydrogen or hydrogen The mixed gas of gas and nitrogen, hydrogen volume content is 10%~95% in the mixed gas.
15. according to the method for claim 1, it is characterised in that:Step(4)Described in auxiliary agent presoma be calcium nitrate, It is one or more in calcium chloride, magnesium nitrate, magnesium chloride, zirconium nitrate, basic zirconium chloride, cerous nitrate, lanthanum nitrate.
16. according to the method described in claim 1 or 15, it is characterised in that:Step(4)Described in auxiliary agent presoma be nitric acid Magnesium.
17. according to the method for claim 1, it is characterised in that:Step(4)Described in solution C, auxiliary agent based on the element, Mass fraction in solution C is 1%~4%.
18. according to the method for claim 1, it is characterised in that:Step(4)Described in furfural aqueous solution furfural quality Score is 30%~50%.
19. according to the method for claim 1, it is characterised in that:Step(4)Described in furfural aqueous solution and solution C matter Amount is than being 3~5.
20. according to the method for claim 1, it is characterised in that:Step(4)Described in solution C and furfural aqueous solution it is total Quality and step(3)The mass ratio of obtained reduction rear catalyst precursor B is 3~6.
21. according to the method for claim 1, it is characterised in that:Step(5)Described in active component presoma be nitric acid It is one or more in nickel, nickel acetate, nickel sulfate, nickel chloride.
22. according to the method described in claims 1 or 21, it is characterised in that:Step(5)Described in active component presoma be nitre Sour nickel.
23. according to the method for claim 1, it is characterised in that:Step(5)Described in solution D, active component presoma Middle the nickeliferous mass fraction in solution D based on the element is 0.4%~2%, matter of the high molecular weight water soluble polymer in solution D Measure 3~6 times that score is Ni element mass fractions.
24. according to the method for claim 1, it is characterised in that:Step(6)Described in absolute ethyl alcohol or citric acid is added The mass ratio of quality and high molecular weight water soluble polymer is 2~4;The mass fraction of the aqueous citric acid solution is 10%~20%.
CN201610003101.3A 2016-01-07 2016-01-07 A kind of preparation method of methane portion oxidation synthesis gas catalyst Active CN106475103B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610003101.3A CN106475103B (en) 2016-01-07 2016-01-07 A kind of preparation method of methane portion oxidation synthesis gas catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610003101.3A CN106475103B (en) 2016-01-07 2016-01-07 A kind of preparation method of methane portion oxidation synthesis gas catalyst

Publications (2)

Publication Number Publication Date
CN106475103A CN106475103A (en) 2017-03-08
CN106475103B true CN106475103B (en) 2018-10-12

Family

ID=58238304

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610003101.3A Active CN106475103B (en) 2016-01-07 2016-01-07 A kind of preparation method of methane portion oxidation synthesis gas catalyst

Country Status (1)

Country Link
CN (1) CN106475103B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036196A (en) * 2018-10-12 2020-04-21 中国石油化工股份有限公司 Preparation method of catalyst for synthesizing indole
CN116651460A (en) * 2023-05-31 2023-08-29 中国矿业大学 Preparation method and application of a low loading Ni-Mo based catalyst

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1419814A1 (en) * 2002-11-15 2004-05-19 L'AIR LIQUIDE, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Perovskite catalyst for the partial oxidation of natural gas
CN103801299A (en) * 2012-11-07 2014-05-21 中国石油化工股份有限公司 Preparation method of catalyst for syngas preparation by methane partial oxidation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1419814A1 (en) * 2002-11-15 2004-05-19 L'AIR LIQUIDE, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Perovskite catalyst for the partial oxidation of natural gas
CN103801299A (en) * 2012-11-07 2014-05-21 中国石油化工股份有限公司 Preparation method of catalyst for syngas preparation by methane partial oxidation

Also Published As

Publication number Publication date
CN106475103A (en) 2017-03-08

Similar Documents

Publication Publication Date Title
CN106944060B (en) A kind of preparation method of synthesizing gas by reforming methane with co 2 catalyst
CN102886272B (en) Supported catalyst, preparation method and application thereof
CN106944159B (en) A kind of preparation method of catalyst for hydrogen production from methane vapor reforming
CN105727955B (en) A kind of preparation method of catalyst for hydrogen production from methane vapor reforming
CN105727978B (en) A kind of method for preparing catalyst for making ethylene from ethane oxidative dehydrogenation
CN105727980B (en) A kind of preparation method of catalyst for preparing propene by oxidative dehydrogenation of propane
CN106475103B (en) A kind of preparation method of methane portion oxidation synthesis gas catalyst
CN105727954B (en) A kind of preparation method of synthesis gas preparing natural gas catalyst
CN105642290B (en) A kind of preparation method of synthesizing gas by reforming methane with co 2 catalyst
CN105727972B (en) A kind of method for preparing catalyst for synthesizing gas by reforming methane with co 2
CN106475106B (en) A kind of preparation method of synthesis gas preparing natural gas by methanation catalyst
CN106944059B (en) A kind of preparation method of synthesis gas full methanation catalyst
CN102441388A (en) Preparation method of high-stability cobalt-based Fischer-Tropsch synthesis catalyst
CN105642288B (en) A kind of preparation method of methane portion oxidation synthesis gas catalyst
CN106944071B (en) The preparation method of methane portion oxidation synthesis gas catalyst
CN106944078B (en) A kind of preparation method for catalyst for hydrogen production from methane vapor reforming
CN106944143A (en) heteropoly acid ammonium type catalyst and its preparation method
CN106944083B (en) A kind of preparation method of catalyst for making ethylene from ethane oxidative dehydrogenation
CN106944082B (en) A kind of preparation method for synthesizing gas by reforming methane with co 2 catalyst
CN105727975B (en) A kind of preparation method of catalyst for making ethylene from ethane oxidative dehydrogenation
CN105727976B (en) A kind of method for preparing catalyst for methane portion oxidation synthesis gas
CN106944058B (en) A kind of preparation method of methane catalyst for preparing synthetic gas
CN106944062B (en) A kind of preparation method of synthesis gas preparing natural gas catalyst
CN106944061B (en) A kind of preparation method of synthesis gas methanation catalyst
CN106944088B (en) A kind of preparation method of catalyst for preparing propene by oxidative dehydrogenation of propane

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant